Hi, my car has lost power but don't know what's causing it.. no eml light is on just seems to have disappeared altogether I done a stop watch yesterday my cars 0-60 is meant to be 8.5, but it's currently 11.7.. clearly this isn't normal.
It's had a full service including
Air, fuel, oil filter change.. fresh coolant, also had new coil pack and plugs.. cleaned throttle body
Don't know what else to try no codes are stored.. it don't feel like its hesitating that's the reason I change the coil pack, it seems much better cold but still not 100%
I am aware of a few problems but would they cause this? I know my thermostat is sticking open not allowing engine to reach operating temp while driving but in traffic it's fine, also my clutch is due for a Change it's not slipping yet but it's right at the top.
Maf failure don't alway bring the eml or fault codes had this on mine. Only pinpointed it via live data @marks152@Valer spotted it in mine I can't remember which lol
It has a maf n it has no egr its z18xe
Just replaced spark plugs there was oil on one of the cylinders so after I replaced them I took it for a drive still no power, took spark plug out to check if it still had oil but it's clean now making me think I wasn't tight enough n oil was escaping but still doesn't run right
Lol my cousins bf just asked me to pop round with the exact same symptoms as you!!
So I went around there with opcom, plugged it in and got p0100.... so I done some live data and the maf would not pass anymore than 1.46v on full load and at idle it bounced around from 0.10v to 0.55v..... so his is goosed and ducked!!
As above the z18xe don't get along with aftermarket sensors what so ever so best not to by twice (waste of money) buy orginal and say bye to the problem .
The engine is Proper gutluss I bet wait until the gm maf is fitted it will be like a different car (which will shock you as you have been use to the problem as the maf slowly failed).
I hope so it doesn't feel like a 1.8 feels more like a 1.2 Literally my grandads 1.2 corsa feels faster gonna order a new maf and I'll update once fitted
You will be surprised in the throttle response as she can breath and monitor the air better (stop restricting itself). Be careful when you drive after the replacement (@Valer recommended is what you need) as she will spin her wheels alot easier. Especially at junctions so to compare to what she is now it will a grandad car no more lol.
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